D. C. Pandey Solutions for Chapter: Solids and Semiconductor Devices, Exercise 20: Objective Problems [Level 1]

The Boolean expression of $\mathrm{NOR}$ gate is 

In the diagram, the input is across terminals $A$ and $C$ and the output is across $B$ and $D$. Then, the output is

A semiconducting device is connected in a series circuit with a battery and a resistance. A current is found to pass through the circuit. If the polarity of the battery is reversed, the current drops to almost zero. The device maybe

With an AC input from $50 \mathrm{Hz}$ power line, the ripple frequency is

An electric field is applied to a semiconductor. Let the number of charge carriers be $n$ and the average drift speed be $v$. If the temperature is increased

The drift current in a $\mathrm{p}-\mathrm{n}$ junction is 

The diffusion current in a $\mathrm{p}-\mathrm{n}$ junction is 

Diffusion current in a $\mathrm{p}-\mathrm{n}$ junction is greater than the drift current in magnitude